Home / 2,208.77-3,048.40-1,264.88

Finding the Fourth Proportional to 2,208.77, 3,048.40 and 1,264.88

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Solution

The fourth proportional to 2,208.77, 3,048.40 and 1,264.88 is: 1,745.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.77 : 3,048.40 = 1,264.88 : x
  2. Step 2: Convert to fraction form
    2,208.77/3,048.40 = 1,264.88/x
  3. Step 3: Cross multiply
    2,208.77x = 3,048.40 × 1,264.88
  4. Step 4: Simplify right side
    2,208.77x = 3,855,869.39
  5. Step 5: Solve for x
    x = 3,855,869.39/2,208.77
  6. Step 6: Final answer
    x = 1,745.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.